ul.explorertree li { list-style-position: inside; }
ul.explorertree, ul.explorertree ul, ul.explorertree li { margin: 0; padding: 0; }
ul.explorertree ul { padding-left: 20px; } /* sublist indentation */

ul.explorertree li ul li { list-style-type: square; }
/*ul.explorertree li.explorertree-open {  list-style-type: circle; }
ul.explorertree li.explorertree-closed {  list-style-type: disc; }*/

ul.explorertree li.explorertree-open ul { display: block; }
ul.explorertree li.explorertree-closed ul { display: none; }